渦(wo)(wo)輪增(zeng)壓(ya)(ya)(ya)器實際(ji)上是一種空(kong)氣(qi)(qi)(qi)壓(ya)(ya)(ya)縮機，通(tong)過壓(ya)(ya)(ya)縮空(kong)氣(qi)(qi)(qi)來增(zeng)加進(jin)氣(qi)(qi)(qi)量。它是利用(yong)發(fa)動(dong)機排出的(de)(de)廢氣(qi)(qi)(qi)慣性沖(chong)力來推動(dong)渦(wo)(wo)輪室內的(de)(de)渦(wo)(wo)輪，渦(wo)(wo)輪又帶動(dong)同(tong)軸的(de)(de)葉(xie)輪，葉(xie)輪壓(ya)(ya)(ya)送由(you)空(kong)氣(qi)(qi)(qi)濾清器管道(dao)送來的(de)(de)空(kong)氣(qi)(qi)(qi)，使之增(zeng)壓(ya)(ya)(ya)進(jin)入氣(qi)(qi)(qi)缸(gang)。當發(fa)動(dong)機轉(zhuan)速增(zeng)大，廢氣(qi)(qi)(qi)排出速度與渦(wo)(wo)輪轉(zhuan)速也同(tong)步增(zeng)加，葉(xie)輪就壓(ya)(ya)(ya)縮更(geng)多(duo)的(de)(de)空(kong)氣(qi)(qi)(qi)進(jin)入氣(qi)(qi)(qi)缸(gang)，空(kong)氣(qi)(qi)(qi)的(de)(de)壓(ya)(ya)(ya)力和(he)密度增(zeng)大可以(yi)燃燒更(geng)多(duo)的(de)(de)燃料，相應增(zeng)加燃料量和(he)調(diao)整發(fa)動(dong)機的(de)(de)轉(zhuan)速，就可以(yi)增(zeng)加發(fa)動(dong)機的(de)(de)輸出功率了。